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oxo-3 seco-6,7 cholestene-4 dioate-6,7 acide de (7) methyle is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90661-34-0

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90661-34-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90661-34-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,6,6 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 90661-34:
(7*9)+(6*0)+(5*6)+(4*6)+(3*1)+(2*3)+(1*4)=130
130 % 10 = 0
So 90661-34-0 is a valid CAS Registry Number.

90661-34-0Downstream Products

90661-34-0Relevant academic research and scientific papers

Reduction de l'acide de Butenandt et de ses derives

Dang Vu, Bien,Ba, Doudou,Vuilhorgne, Marc,Depaire, Henri,Bourdon, Raymond

, p. 257 - 262 (2007/10/02)

Butenandt acid 1 was reduced with zinc in acetic acid at room temperature to the isomeric dihydroderivatives 3 and 5, to B-nor (5 β) cholestane-5-carboxylic acid 6 whereas only 3 and 4 have been obtained by Fieser at higher temperature.Compound 6 could be

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